algebra
posted by Anonymous .
a bank opens with $4.05 in nickels and pennies. There are 157 coins in total. how many nickels and how many pennies

X = The # of nickels.
(157  X) = The # of pennies.
5X + 1(157X) = 405 Cents.
5X + 157  X = 405,
4X = 405  157 = 248,
X = 62 Nickels.
157  X = 157  62 = 95 Pennies.